the sewage treatment plant is physically, biologically and chemically clean & safe to discharge back to environment
To prevent the pollution of ground water, surface water, marine environment, Flora & Fauna, General environment.
To reduce the spread of communicable diseases caused by the pathogenic organisms in the sewage such as cholera, typhoid, diarrhea, intestinal worms etc.
Craig George Cogger has written: 'General guidelines for subsurface treatment of wastewater' -- subject(s): Purification, Water, Sewage disposal in the ground, Sewage 'Septic system waste treatment in the soil' -- subject(s): Environmental aspects, Environmental aspects of Soils, Land treatment of wastewater, Purification, Sewage, Sewage disposal in the ground, Soils
Nutrition
John A. Burke has written: 'Sewage treatment' -- subject(s): Purification, Sewage, Sewage disposal plants
Alfred P. Bernhart has written: 'Treatment and disposal of waste water from homes by soil infiltration and evapo-transpiration' -- subject(s): Biological treatment, Purification, Rural Sewage disposal, Seepage, Sewage 'Treatment and disposal of waste water from homes' -- subject(s): Biological treatment, Purification, Rural Sewage disposal, Seepage, Sewage
Thomas Phillip Francis has written: 'Modern sewage treatment' -- subject(s): Sewage, Sewage disposal, Purification
Willem Rudolfs has written: 'Industrial wastes, their disposal and treatment' -- subject(s): Factory and trade waste 'Principles of sewage treatment' -- subject(s): Sewage, Sewage disposal, Purification
H. H. Wagenhals has written: 'Sewage treatment in the United States' -- subject(s): Sewage, Purification
Paul Hansen has written: 'Increasing the efficiency of small water works and sewage treatment plants' -- subject(s): Purification, Water, Sewage disposal, Sewage
William A. Parsons has written: 'Chemical treatment of sewage and industrial wastes' -- subject(s): Sewage, Factory and trade waste, Purification
C. J. Nurse has written: 'The purification and disposal of sewage' -- subject(s): Purification, Sewage, Sewage disposal
C. B. Hopkins has written: 'Granular carbon treatment of raw sewage' -- subject(s): Activated Carbon, Adsorption, Pilot plants, Purification, Sewage, Sewage disposal plants
Henry H. Benjes has written: 'Cost estimating manual' -- subject(s): Costs, Sewage disposal plants 'Handbook of biological wastewater treatment' -- subject(s): Biological treatment, Purification, Sewage